In OutSystems, when using a link with an onclick event set for a ClientAction that eventually retrieves a URL from a ServerAction and tries to open it in a new tab, you might encounter issues with the target="_blank" not working as expected. This is because opening a new tab generally requires immediate action in response to a user event, and using ClientActions with asynchronous ServerActions can disrupt this flow.

Steps to Open a Link in a New Tab

1. Create a ServerAction to Get the URL: Ensure you have a ServerAction that retrieves the URL you want to open in a new tab.

2. Create a ClientAction to Handle the Logic:

   • The ClientAction will call the ServerAction to get the URL.
   • Once the URL is retrieved, the ClientAction will use JavaScript to open the URL in a new tab.

3. Set Up the Link with the OnClick Event:

   • The link will trigger the ClientAction.
   • The ClientAction will handle the URL retrieval and open the link in a new tab.

Add a DataAction on the screen to return the URL (e.g., GetURL.URL), then set the link's OnClick event to RedirectToURL and assign the URL as GetURL.URL.  ( Note : If you want to open in new tab by default set attributes as target : "_blank" )

Hello, 

The problem occurs because the property "target" add blank in a span, not in the default link, but you can try this: 

1- add a client action with a URL parameter, call this action on click button

2- In the client action, add a JS script with the code below:

window.open($parameters.URL, '_blank');

I hope this can be helpfull